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Search: id:A007231
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| A007231 |
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Number of free subsets of multiplicative group of GF(3^n).
(Formerly M3835)
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+0
1
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| 1, 5, 13, 52, 121, 455, 1093, 4305, 9841, 36905, 88573, 348728, 797161, 2989355, 7174453, 28585712, 64570081, 242137805, 581130733, 2288202262
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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P. Bouchard and Y.-N. Yeh, Finding f-free subsets of maximal cardinality, S\'{e}ries Formelles et Combinatoire Alg\'{e}brique}, 4th colloquium, 15-19 Juin 1992, Montr\'{e}al, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, pp. 11-17.
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CROSSREFS
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Sequence in context: A082132 A138277 A084601 this_sequence A089794 A039510 A084136
Adjacent sequences: A007228 A007229 A007230 this_sequence A007232 A007233 A007234
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KEYWORD
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nonn
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AUTHOR
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Simon Plouffe (plouffe(AT)math.uqam.ca)
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